Standard Rack Assembly

– Fully sheeted duct furnaces mounted in a 16-gauge galvanized steel frame.
– Provides listed temperature rise and air side pressure drop performance.
– Each furnace includes an individual shutoff valve, flexible gas connector & union piped to properly sized supply header.
– Condensate drains pre-piped to a common header.
– Easy removal of any single duct furnace.
– All controls prewired to a sequencer for system control.
– Customer only needs to provide Power, “Call for Heat” and a 0-10 VDC signal.

Weatherproof Vestibule Enclosure

– Complete indoor or outdoor rated Vestibule cabinet.
– Large, hinged galvanized steel door for easy access to components and controls.
– Fresh air intakes assure adequate combustion air supply.
– All heaters pre-wired to marked terminal strip for electrical supply.
– Insulated vent connectors to prevent heat build-up in cabinet.

Outdoor Venting Kit

– Vent riser assembly with integral rain cap.
– Provides proper venting of flue gases and prevents flue gas recirculation into burner combustion air supply.


Application Guidelines Product Specification User Guidelines OEM Instructions Submittal / Order Information

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Model NumberPDFAlt PDFPDF of Gas TrainPDF of Wiring DiagramMax Input MBHMax Output MBHMin Input MBHMin Output MBHNat. Gas Turndown RatioMax Ind. HX Input# of HX'sMax CFMMax APD @ Min RiseMax Temp RiseMin CFMMin APD @ Max RiseDim ADim BDim CDim DWeight (Lbs.)Total Amps 120VTotal Amps 230V
HDA-VHP-150-300-OPDFPDFPDFPDF3002433024.310 to 1150275000.4410022500.0239.6659.0544.6616.6158585
HDA-VHP-200-400-OPDFPDFPDFPDF4003244032.410 to 12002100000.7810030000.0639.6659.0544.6616.6162585
HDA-VHP-150-450-OPDFPDFPDFPDF4503643024.315 to 11503112500.4410033750.0258.6359.0544.6616.61900127.5
HDA-VHP-250-500-OPDFPDFPDFPDF5004055040.510 to 12502125000.7910037500.0746.1659.0544.6616.6166585
HDA-VHP-300-600-OPDFPDFPDFPDF6004866048.610 to 13002150000.810045000.0752.6659.0544.6616.6172585
HDA-VHP-200-600-OPDFPDFPDFPDF6004864032.415 to 12003150000.7810045000.0658.6359.0544.6616.61925127.5
HDA-VHP-350-700-OPDFPDFPDFPDF7005677056.710 to 13502175000.8110052500.0859.1659.0544.6616.6179885
HDA-VHP-250-750-OPDFPDFPDFPDF7506085040.515 to 12503187500.7910056250.0768.3859.0544.6616.61998127.5
HDA-VHP-400-800-OPDFPDFPDFPDF8006488064.810 to 14002200000.8810060000.0865.6659.0544.6616.6187085
HDA-VHP-300-900-OPDFPDFPDFPDF9007296048.615 to 13003225000.810067500.0778.1359.0544.6616.611053127.5
HDA-VHP-500-1000-OPDFPDFPDFPDF10008101008110 to 15002250000.9610075000.0978.6659.0544.6620.1198510
HDA-VHP-350-1050-OPDFPDFPDFPDF10508507056.715 to 13503262500.8110078750.0887.8859.0544.6616.611055127.5
HDA-VHP-600-1200-OPDFPDFPDFPDF120097212097.210 to 16002300001.0310090000.191.6659.0544.6620.11105010
HDA-VHP-400-1200-OPDFPDFPDFPDF12009728064.815 to 14003300000.8810090000.0897.6359.0544.6616.611151127.5
HDA-VHP-500-1500-OPDFPDFPDFPDF150012151008115 to 15003375000.96100112500.09117.1359.0544.6620.111477157.5
HDA-VHP-600-1800-OPDFPDFPDFPDF1800145812097.215 to 16003450001.03100135000.1136.6359.0544.6620.111575157.5
Note: For Propane gas, turndown is 60% of stated natural gas turndown.